Notifier NFS-320 Installation Manual

Also see for NFS-320: Operation manual

Contents

Notifier NFS-320 Installation Manual Manual pdf 24 page image

24 NFS-320/E/C Installation Manual — P/N 52745:M2 7/1/14Installation Connecting the Power Cables3.5.4 Installing and Connecting the BatteriesBatteries are installed in the control panel cabinetor in a separate battery cabinet which can bemounted below the control panel or up to 20 feet(6.096 m) away from the control panel, in conduitin the same room.Connect the battery as follows (see Figure 3.4above):1. Install batteries into bottom of cabinet or intoseparate battery cabinet.2. Connect the red cable from TB3(+) on theCPS-24/E power supply to the positive (+)terminal of one battery.3. Connect the black cable from TB3(–) on theCPS-24/E power supply to the negative (–) terminal of the other battery.4. Connect the remaining cable between the negative (-) terminal on the first battery to thepositive (+) terminal on the second battery.3.5.5 External DC Power Output ConnectionsTerminal TB10 provides two (2) power outputs, resettable and non-resettable. Each output ispower-limited. Follow sequence of steps in Section 3.2 “Installation Checklist”, Table 3.1; this ispart of Step 4.24 VDC Resettable Power Circuit (Four-Wire Smoke Detectors). The power supplyprovides a single 24 VDC filtered, power-limited, resettable power circuit for devices that requireresettable power (such as four-wire smoke detectors). This circuit is power-limited, but must besupervised. To provide supervision, install a UL-listed end-of-line power supervision relay (such asthe EOLR-1) after the last device. Connect the power supervision relay normally open contact inseries with an Initiating Device Circuit (IDC). The four-wire power circuit energizes the powersupervision relay. When you reset the system, the control panel removes power from theseterminals for approximately 15 seconds.!wWARNING:Battery contains sulfuric acid which can cause severe burns to the skin and eyes, and can destroyfabrics. If contact is made with sulfuric acid, immediately flush skin or eyes with water for 15 minutesand seek immediate medical attention.! WARNING:Do not connect the Battery Interconnect Cables (P/N 75560 and 75561) at this time. Make thisconnection AFTER initial system primary powerup. Follow sequence of steps in Section 3.2“Installation Checklist”, Table 3.1; this is Step 11.COM COM +5V AUX+24V AUXTB3 - Battery ConnectionBattery (-)Battery (+)Figure 3.5 CPS-24/E:DC Power ConnectionsNon-resettablePowerCPU-320-DCOut.wmfResettablePowerFigure 3.6 Power Supply DC Outputs - TB10